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3 years ago

What is the difference (2x-3)-(x-1)

Mathematics

2 answers:

lukranit [14]3 years ago

7 0

Answer:

x-2

Step-by-step explanation:

(2x-3)-(x-1)

distribute the minus sign

2x-3 -x +1

Combine like terms

2x-x -3+1

x -2

Fofino [41]3 years ago

4 0

Answer:

x-2

Step-by-step explanation:

You might be interested in

Let m=x^2-5m=x 2 −5m, equals, x, squared, minus, 5. Which equation is equivalent to (x^2-5)^2-3x^2+15=-2(x 2 −5) 2 −3x 2 +15=−2l

adelina 88 [10]

Answer:

$m^2-3m=-2$
$m^2-3m+2=0$

Step-by-step explanation:

Let $m=x^2-5$

We want to express the equation $(x^2-5)^2-3x^2+15=-2$ in terms of m.

Given: $(x^2-5)^2-3x^2+15=-2$

Factorizing the third and fourth term, we obtain:

$(x^2-5)^2-3(x^2-5)=-2$

Substituting $m=x^2-5$ , the above equation becomes:

$m^2-3m=-2$

Since the options are not given, the equivalent equation is:

$m^2-3m=-2$

It could also be written in a rearranged form as:

$m^2-3m+2=0$

7 0

3 years ago

Write a algebraic expression for c=12b

oksian1 [2.3K]

A=12 so B is the variable while C is the solution.

C= 12xb

Or you can rearrange it as long as it plugs in together.

7 0

3 years ago

How much will $1000 deposited in an account earning 7% interest compounded annually be worth in 20 years? (which formula do I us

Xelga [282]

Answer:

$3870

Step-by-step explanation:

Hello, the initial deposit is $1000.

After one year, we will get 1000 + 7%*1000= 1000 * ( 1+7%) = 1000 * (1+0.07)

= 1000 * 1.07

And we want to compound it so the second year we will get

$1000 * 1.07 * 1.07 = 1000 * 1.07^2$

And after n years, we will get

$1000 * 1.07^n$

In that example, we want to know how much we will get after 20 years, so this is:

$1000 * 1.07^{20}=3869.684462...$

Thank you.

5 0

4 years ago

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each

djyliett [7]

Answer:

Part A) The length of the ribbon is 15 feet

Part B) $m=-1$

Part C) see the explanation

Step-by-step explanation:

Part A)

Let

x -----> the length of the second piece of ribbon in feet

y -----> the length of the first piece of ribbon in feet

we know that

The length of the ribbon is equal to the sum of the first piece and the second piece of ribbon

y+x

take any point from the graph

Example

(13,2)

That means

Second piece ----> x=13 ft

First piece ----> y=2 ft

The length is (y+x)=2+13=15 ft

Part B) What is the slope of the line?

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take the intercepts from the graph to calculate the slope

we have

(0,15) and (15,0)

substitute

$m=\frac{0-15}{15-0}$

$m=-1$

Part C) Explain what the slope of the line represents

we know that

The slope is equal to -1

That means, that we have a decreasing function, as the value of x (length of second piece) increases by one, the value of y (length of the first piece) decreases by one

The slope fits in the story because the linear equation in slope intercept form between the variable x and the variable y is equal to

$y=-x+15$

3 0

3 years ago

A circle has a radius of 8.25 feet. To the nearest square foot, what is the area of the circle?

Natali [406]

Answer: 214 ft^2

Step-by-step explanation:

A=πr^2

3.14(8.25)^2

3.14(68.0625)

213.71625

rounded to the nearest square foot: 214

7 0

3 years ago